Identification and characterization of DC ‐SIGN‐binding glycoproteins in allergenic foods

ConclusionsWe demonstrate that peanut agglutinin, a minor peanut allergen, is a novel ligand for DC‐SIGN. Peanut agglutinin activates DCs to induce the expression of costimulatory molecules in vitro. We present a comprehensive report on the characterization of DC‐SIGN‐binding proteins in common allergenic foods such as peanut, soy, tree nuts, egg, and milk. Foods that rarely induce allergy, such as pine nuts, chickpea, and corn, showed no binding to DC‐SIGN. Several DC‐SIGN‐binding proteins show reactivity in serum IgE immunoblots. We have also identified novel non‐IgE‐binding proteins that interact with DC‐SIGN; these proteins may be important for regulating immune responses to these foods.
Source: Allergy - Category: Allergy & Immunology Authors: Tags: Original Article Source Type: research